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07-05-2014
Physics

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Explain why cool rock material sinks when convection takes place in the mantle?

Answer :

Boeing7478i Boeing7478i

07-05-2014

This is because its density increases. In a liquid, the density decreases, allowing it to stay on top of another substance. The liquid cools as it rises away from the core, and gets closer to the crust. The loss of temperature makes it more dense than the liquid.

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